Reforming of heavy naphtha in the absence of hydrogen and under more moderate conditions compared with conventional naphtha reforming processes is a very attractive subject. Naphtha reforming in the absence of hydrogen along with desulfurization capability of zeolite catalysts has made the process considerably popular. In order to investigate the effect of operation conditions on the naphtha reforming process using zeolite catalyst in the absence of hydrogen, ZSM-5 catalyst (Si/Al = 50) was successfully synthesized. Three operation parameters including WHSV, temperature and pressure were selected as the main factors to determine the optimal conditions for obtaining maximum octane number, liquid recovery, sulfur conversion and minimum coke deposition on catalyst and benzene content as the responses for the modified Taguchi design of experiments. A model was proposed for each of the responses and the corresponding coefficients were obtained based on the experimental data. The analysis of the results of the experimental design was carried out based on the kinetic models proposed for naphtha reforming process in the absence of hydrogen. The optimum conditions to achieve maximum octane number, liquid recovery, and S conversion and minimum coke deposition on catalyst and benzene content were WHSV =4.02 h⁻¹, temperature = 349.09°C, and pressure = 20 bar. The actual responses obtained using reactor tests under optimal conditions indicated that the proposed model was completely valid.

与常规石脑油重整方法相比，在没有氢且在更适度的条件下重质石脑油重整是非常有吸引力的主题。在不存在氢的情况下石脑油重整以及沸石催化剂的脱硫能力使得该方法相当受欢迎。为了研究操作条件对在不存在氢的情况下使用沸石催化剂的石脑油重整工艺的影响，成功合成了ZSM-5催化剂（Si / Al = 50）。选择WHSV，温度和压力这三个操作参数作为主要因素，以确定获得最大辛烷值，液体回收率，硫转化率以及催化剂上最低的焦炭沉积和苯含量的最佳条件，作为改进的Taguchi设计实验的响应。针对每个响应提出了一个模型，并根据实验数据获得了相应的系数。实验设计结果的分析是基于在没有氢气的情况下针对石脑油重整过程提出的动力学模型进行的。实现最大辛烷值，液体回收率和S转化率以及在催化剂和苯上最小焦炭沉积的最佳条件为WHSV = 4.02 h^-1，温度= 349.09°C，压力= 20 bar。在最佳条件下使用反应堆测试获得的实际响应表明，所提出的模型是完全有效的。